John David John

Dr. John David John

orcid

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 June 2025 in Persoonia - Molecular Phylogeny and Evolution of Fungi
Verified
Journal Article
Open access
PCP.W. Crous
P.W. Crous
DCDavid Catcheside
David Catcheside
PCP.S. Catcheside
P.S. Catcheside
AAA.C. Alfenas
A.C. Alfenas
RAR.F. Alfenas
R.F. Alfenas
JGJ.Z. Groenewald
J.Z. Groenewald
Novel species of fungi described in this study include those from various countries as follows: Argentina, Septoria reinamora on leaf spots of Mutisia spinosa. Australia, Cortinarius albofolliculus on mossy soil, Cortinarius descensoriformis among leaf litter, Cortinarius kaki among leaf litter, Cortinarius lissosporus in leaf litter, Cortinarius malogranatus in leaf litter, Cortinarius meletlac on soil in mixed forest, Cortinarius sebosioides in long decayed wood litter, Helicogermslita australiensis as an endophyte from healthy leaves of Archontophoenix cunninghamiana, Puccinia clemensiorum on culms of Eleocharis ochrostachys, Puccinia geethae on leaves of Cyperus brevifolius, Puccinia marjaniae on leaves of Nymphoides indica, Puccinia scleriae-rugosae on leaves of Scleria rugosa. Brazil, Dactylaria calliandrae on living leaf of Calliandra tweediei, Mucor cerradoensis from soil, Musicillium palmae on living leaves of unidentified palm species, Neodendryphiella agapanthi from stalks of Agapanthus praecox, Parafusicladium riodejaneiroanum on living leaves of native bamboo, Parapenidiella melastomatis on living leaves of unidentified Melastomataceae, Pararamichloridium ouropretoense on living leaves of unidentified Poaceae, Pentagonomyces endophyticus (incl. Pentagonomyces gen. nov.) as endophytic from roots of Musa acuminata, Polyschema endophytica from healthy roots of coffee plant, Purimyces endophyticus as root endophyte of Cattleya locatellii, Ramularia rhododendri on living leaves of Rhododendron sp., Staphylotrichum soli from soil, Trichoderma sexdentis from leaves inside a nest of the leaf-cutting ant Atta sexdens rubropilosa, Wiesneriomyces soli from soil. France, Cosmospora nemaniae on dead or effete stromata of Nemania cf. colliculosa, Inocybe alnobetulae in subalpine green alder stands, Stylonectria hygrophila on dead twigs of Betula pubescens. Germany, Coniochaeta corticalis from bark humus, Coniochaeta fermentaria from fermentation residues from biogas plants, Coniochaeta fibricola from softwood fibres, Coniochaeta weberae from bark humus, Inocybe canicularis on calcareous to more acidic soil with conifers. Iceland, Inocybe islandica associated with Dryas octopetala. India, Vishniacozyma indica on dead twigs. Iran, Botryotrichum lycii on rotten leaf of Lycium depressum. Italy, Cuphophyllus dolomiticus among Salix retusa, Salix reticulata and Dryas octopetala, Inocybe subentolomospora on moss with the presence of Alnus incana, Populus nigra and Salix spp. Malaysia, Catenulostroma pellitae on leaf spots of Eucalyptus pellita. Mexico, Colletotrichum mexicanus from fruit of Persea americana cv. Hass. New Caledonia (France), Cortinarius caeloculus, Cortinarius luteigemellus and Cortinarius perpensus on soil under Nothofagus aequilateralis. New Zealand, Cytospora braithwaitei on branch of Malus domestica. Pakistan, Callistosporium khalidii on humus soil, Entoloma lilacinum on litter in conifer forest, Laccaria decolorans on litter in broad-leaved subtropical forest. Poland, Pseudoneoconiothyrium modrzynanum from resin of Larix decidua ssp. polonica, Tuberculiforma enigmatica isolated from sooty mould community on Quercus robur leaves. Portugal, Clavulus hemisphaericus (incl. Clavulus gen. nov.) on mossy slopes and under Laurus leaf litter, Entoloma daegae on sandy, granitic soil, Hygrocybe aurantiocitrina under laurel forest, Hygrocybe sanguineolutea gregarious in laurel forest, Hygrocybe vulcanica on mossy areas of laurel forest areas, Pachyphlodes algarvensis on sandy soil under Cistus salvifolius, Quercus suber and Pinus pinea. South Africa, Amycosphaerella podalyriae on leaf of Podalyria calyptrata, Erythrobasidium eucalypti from the gut of Gonipterus sp., Letendraea goniomae on leaves of Gonioma kamassi, Pezicula brabeji and Sphaerulina brabeji on twigs of Brabejum stellatifolium, Stachybotrys conicosiae on dead flower head of Conicosia elongata, Talaromyces ignescens from soil. Spain, Cortinarius phaeobrunneus on soil under Quercus ilex and Q. faginea, Inocybe pini-halepensis among grass and fallen leaves of Pinus halepensis, Inocybe subporcorum in sandy soils under Quercus ilex subsp. ballota and Pinus pinaster, Mycena morenoi on dead leaves of Betula pubescens and Salix atrocinerea, Pachyphlodes iberica on clayey and loamy soil under Quercus ilex and Quercus rotundifolia, Ramariopsis coronata in laurel forest. Switzerland, Inocybe minata in a bog on very wet acidic soil with Salix spp. and Betula spp. Thailand, Hypocrella khonsanitii on scale insects (Coccidae), Petchiella hymenopterorum on hymenopteran pupae in the nest (Hymenoptera). Trinidad and Tobago, Neodevriesia maravalensis from office swab. Türkiye, Russula anatolica under Quercus vulcanica. UK, Paracylindrosporium dactylorhizae (incl. Paracylindrosporium gen. nov.) on leaf spots of Dactylorhiza sp., Niesslia hepworthiae and Niesslia libertiae on living leaves of Libertia grandiflora. Ukraine, Lichenohendersonia cetrariae on thallus of terricolous Cetraria aculeata. USA, Atromagnispora indianensis (incl. Atromagnispora gen. nov.) on submerged wood in a freshwater stream, Cytospora michiganensis from utility room (settle plate), Exophiala aeris from air (settle plate), Hongoboletus americanus from mixed pine-hardwood forest, Lorrainsmithia pennsylvanica from bedroom, air, Superstratomyces massachusettsanus from lyse buffer. Vietnam, Aspergillus halopiscium on dry marine anchovy Stolephorus commersonnii. Morphological and culture characteristics are supported by DNA barcodes.

23 July 2025 in Journal of Fungi
Verified
Journal Article
Open access
PDF file
ZPZahra Parhizi
Zahra Parhizi
JJJohn David John
John David John
KKKate Kauter
Kate Kauter
DMDeirdre Mikkelsen
Deirdre Mikkelsen
PPPriya Pal
Priya Pal
PBPaulomi (Polly) Burey
Paulomi (Polly) Burey
Mycelium-based composites (MBCs) are an emerging category of cost-effective and environmentally sustainable materials that are attracting significant research and commercial interest across various industries, including construction, manufacturing, agriculture, and biomedicine. These materials harness the natural growth of fungi as a low-energy bio-fabrication method, converting abundant agricultural by-products and waste into sustainable alternatives to energy-intensive synthetic construction materials. Their affordability and eco-friendly characteristics make them attractive for both research and commercialisation. Currently, mycelium-based foams and sandwich composites are being actively developed for applications in construction. These materials offer exceptional thermal insulation, excellent acoustic absorption, and superior fire safety compared to conventional building materials like synthetic foams and engineered wood. As a result, MBCs show great potential for applications in thermal and acoustic insulation. However, their foam-like mechanical properties, high water absorption, and limited documentation of material properties restrict their use to non- or semi-structural roles, such as insulation, panelling, and furniture. This paper presents a comprehensive review of the fabrication process and the factors affecting the production and performance properties of MBCs. It addresses key elements such as fungal species selection, substrate choice, optimal growth conditions, dehydration methods, post-processing techniques, mechanical and physical properties, termite resistance, cost comparison, and life cycle assessment.

5 March 2025 in Journal of Hazardous Materials
Verified
Journal Article
Open access
YSYoonjung Seo
Yoonjung Seo
YLYunru Lai
Yunru Lai
GCGuangnan Chen
Guangnan Chen
JJJohn David John
John David John
SWShaobin Wang
Shaobin Wang
PSPinan Song
Pinan Song
Accurate quantification of microplastics (MPs) in soils is a significant challenge due to the complex nature of the organo-mineral matrix. Fine mineral particles and organic matter often interfere with the efficiency of extraction, identification and quantification of MPs from soils. Here, an optimized MP extraction and quantification method is proposed, using total organic carbon analyser-solid sample combustion unit (TOC-SSM) analysis. The approach entails a field survey, digestion of organic matter by Piranha solution, density separation, and quantification. This method achieves a high total recovery rate of 97.39 ± 14.25 (SE) % for particles sized between 300 and 600 µm, and 94.80 ± 13.48 (SE) % for particles less than 300 µm with spiked soil as samples. The optimised method is then applied to strawberry farm soils that use plastic mulch films to quantify MP contamination levels. Our results indicate MP concentrations of 12.24 ± 3.65 (SE) mg kg-1 (for particles of 300-2000 µm in size) and 2.62 ± 0.66 (SE) mg kg-1 (for particles smaller than 300 µm). With improved simplicity and the ability to provide the actual weight of plastics for the extraction and quantification of MPs, this work offers a potential approach for assessing low-density plastics in the northeastern Australian agricultural soils with a dominant MP contamination, specifically polyethylene (PE).

27 August 2025 in Journal of Hazardous Materials
Verified
Journal Article
Open access
YSYoonjung Seo
Yoonjung Seo
YLYunru Lai
Yunru Lai
GCGuangnan Chen
Guangnan Chen
JJJohn David John
John David John
LI LILI LI
LI LI
PSPinan Song
Pinan Song
The continuous use of plastics is expected to increase microplastic (MP) contamination in soils, raising concerns about impacts on soil ecosystems and crop productivity. This work investigated the effects of different sizes and concentrations of polyethylene microplastics (PE-MPs) on soil properties in a controlled microcosm experiment. Microplastics of three sizes (300-600, 600-2000, and 2000-5000 µm) were tested at three concentrations (0.02 %, 0.1 %, and 1 % by weight). Significant changes were observed in soil cation exchange capacity (CEC) and dissolved organic matter (DOM), accompanied by the leaching of phthalate acid esters (PAEs) from PE-MPs, with concentrations reaching up to 0.2 mg kg⁻¹ . In contrast, soil pH, electrical conductivity (EC), water-extractable organic carbon (WEOC), and enzyme activity were not significantly affected. In particular, the smallest PE-MPs caused a 12.9 % reduction in soil CEC and a negative priming effect was observed in soil DOM. Although no clear dose-response relationship was observed, the findings suggest that MP-induced changes in soil chemistry are driven by both size-dependent surface interactions and complex soil matrix dynamics. These results demonstrate that PE-MPs can disrupt essential soil functions related to nutrient retention, organic matter dynamics, and pollutant transport, indicating broader impacts on soil health. As smaller MPs continue to accumulate, further research is needed to assess their long-term effects under varied environmental conditions and to inform effective mitigation strategies in agroecosystems. SYNOPSIS: Polyethylene microplastics altered key soil chemical properties, with smaller sizes and higher concentrations leading to greater changes in cation exchange capacity, dissolved organic matter, and diethyl phthalate release, raising concerns for long-term soil health.

26 June 2025 in Preprints.org
Verified
Preprint
Open access
PDF file
ZPZahra Parhizi
Zahra Parhizi
JJJohn David John
John David John
KKKate Kauter
Kate Kauter
DMDeirdre Mikkelsen
Deirdre Mikkelsen
PPPriya Pal
Priya Pal
PBPaulomi (Polly) Burey
Paulomi (Polly) Burey
Mycelium-based composites (MBC) are an emerging category of cost-effective and environmentally sustainable materials that are attracting significant research and commercial interest across various industries, including construction, manufacturing, agriculture, and biomedicine. These materials harness the natural growth of fungi as a low-energy bio-fabrication method, converting abundant agricultural by-products and waste into sustainable alternatives to energy-intensive synthetic construction materials. Their affordability and eco-friendly characteristics make them attractive for both research and commercialisation. Currently, mycelium-based foams and sandwich composites are being actively developed for applications in construction. These materials offer exceptional thermal insulation, excellent acoustic absorption, and superior fire safety compared to conventional building materials like synthetic foams and engineered wood. As a result, MBC show great potential for applications in thermal and acoustic insulation. However, their foam-like mechanical properties, high water absorption, and limited documentation of material properties restrict their use to non- or semi-structural roles, such as insulation, panelling, and furniture. This paper presents a comprehensive review of the fabrication process and the factors affecting the production and performance properties of MBC. It addresses key elements such as fungal species selection, substrate choice, optimal growth conditions, dehydration methods, post-processing techniques, mechanical and physical properties, termite resistance, cost comparison, and life cycle assessment.

2 August 2021 in Mycologia
Verified
Journal Article
Closed access
FOFitria T. Oktalira
Fitria T. Oktalira
TMTom May
Tom May
JJJohn David John
John David John
CLCeleste C. Linde
Celeste C. Linde
(2021). Seven new Serendipita species associated with Australian terrestrial orchids. Mycologia. Ahead of Print.